<template>
  <div class="icons-wrapper">
    <div class="icons">
      <swiper :options="iconSwiperOption">
        <swiper-slide v-for="(page,index) of pages" :key="index">
          <div class="icon" v-for="item of page" :key="item.id">
            <div class="icon-img">
              <img class="icon-img-content" :src="item.imgUrl">
            </div>
            <p class="icon-dec">{{item.desc}}</p>
          </div>
        </swiper-slide>
      </swiper>
    </div>
    <div v-if="pages.length > 1" class="icon-swiper-pagination"  slot="pagination"></div>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      iconSwiperOption: {
        pagination: '.icon-swiper-pagination'
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/varibles.styl'
  @import '~styles/mixins.styl'
  .icons-wrapper >>> .swiper-pagination-bullet
    margin-right .1rem
  .icons-wrapper >>> .swiper-pagination-bullet-active
    background rgba(0,175,190,.8)
  .icons >>> .swiper-container
    height 0
    padding-bottom 50%
  .icons
    margin-top .1rem
  .icon
    position relative
    overflow hidden
    float left
    width 25%
    height 0
    padding-bottom 25%
    .icon-img
      position absolute
      top 0
      left 0
      right 0
      bottom .44rem
      box-sizing border-box
      padding .1rem
      .icon-img-content
        display block
        margin 0 auto
        height 100%
    .icon-dec
      position absolute
      left .05rem
      right .05rem
      bottom 0
      height .44rem
      line-height .44rem
      text-align center
      color $darkTextColor
      ellipsis()
  .icon-swiper-pagination
    width 100%
    text-align center
</style>
